Free-standing alumina nanobottles and nanotubes pre-integrated into nanoporous alumina membranes.

Publisher:
Institute of Physics, National Institute for Materials Science
Publication Type:
Journal Article
Citation:
Science and Technology of Advanced Materials, 2014, 15 (4), pp. 1 - 8
Issue Date:
2014-08
Full metadata record
Files in This Item:
Filename Description Size
8-31-2017_Free-stand.pdfPublished Version2.48 MB
Adobe PDF
A novel interfacial structure consisting of long (up to 5 μm), thin (about 300 nm), highly-ordered, free-standing, highly-reproducible aluminum oxide nanobottles and long tubular nanocapsules attached to a rigid, thin (less than 1 μm) nanoporous anodic alumina membrane is fabricated by simple, fast, catalyst-free, environmentally friendly voltage-pulse anodization. A growth mechanism is proposed based on the formation of straight channels in alumina membrane by anodization, followed by neck formation due to a sophisticated voltage control during the process. This process can be used for the fabrication of alumina nanocontainers with highly controllable geometrical size and volume, vitally important for various applications such as material and energy storage, targeted drug and diagnostic agent delivery, controlled drug and active agent release, gene and biomolecule reservoirs, micro-biologically protected platforms, nano-bioreactors, tissue engineering and hydrogen storage.
Please use this identifier to cite or link to this item: